From patchwork Thu Jun 6 08:54:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhao Liu X-Patchwork-Id: 13688023 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 74EC4C27C52 for ; Thu, 6 Jun 2024 08:39:55 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sF8ei-0002Db-AF; Thu, 06 Jun 2024 04:39:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sF8ee-0002DP-W5 for qemu-devel@nongnu.org; Thu, 06 Jun 2024 04:39:29 -0400 Received: from mgamail.intel.com ([192.198.163.18]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sF8ed-0004nc-2h for qemu-devel@nongnu.org; Thu, 06 Jun 2024 04:39:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1717663167; x=1749199167; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=O3uw5Ndb6sbyAdzF8DKyuQuxvsyqDFaZheHCc+LV6cU=; b=lctA5EWK/xz0aLIiLnRrXlZEaxWWUUAUCfuX+ZftA9cT8MfG8G1dL4qo Hox52HjXwrNq3hGAMc9cmMe6/QbVKvZlW8uKVUuiMiDV4pCTrUq6ZYLzx FMFl4jZi6qqw+XBeUpnCTcoTMLaBQjoU8ixjvF7rUB//gwB3T6H6E8r+Q xpP/fMqBirH9hUGNMppOU1qZ77SouRIPK5djny/kLDVgi8y+cLaO0m5zv VFPtmVrRQekH+gbGAFRPi+6YjtsizvGwp9qEWp/dEnWV3RV1LeNnSjhC9 MSeU64Ypi3KtKDxmn8Hw8dbP2U5uye4KL3Q7DvTgSXYycMeB0FKiboTa0 g==; X-CSE-ConnectionGUID: f1ULOJ3STfG2Bm5zSrbXJg== X-CSE-MsgGUID: gv1C6GDwQo+BLD3EDKdo0w== X-IronPort-AV: E=McAfee;i="6600,9927,11094"; a="14058982" X-IronPort-AV: E=Sophos;i="6.08,218,1712646000"; d="scan'208";a="14058982" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jun 2024 01:39:24 -0700 X-CSE-ConnectionGUID: IoVW7Cj+StWAGGtZ7rKWbw== X-CSE-MsgGUID: Oygk6NrLS/GfnRYay2UDEg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,218,1712646000"; d="scan'208";a="37956760" Received: from liuzhao-optiplex-7080.sh.intel.com ([10.239.160.36]) by orviesa009.jf.intel.com with ESMTP; 06 Jun 2024 01:39:22 -0700 From: Zhao Liu To: Paolo Bonzini , "Michael S . Tsirkin" , =?utf-8?q?Daniel_P_=2E_Berrang?= =?utf-8?q?=C3=A9?= , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Thomas Huth Cc: qemu-devel@nongnu.org, Zhao Liu Subject: [PATCH] docs: i386: pc: Avoid mentioning limit of maximum vCPUs Date: Thu, 6 Jun 2024 16:54:36 +0800 Message-Id: <20240606085436.2028900-1-zhao1.liu@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.18; envelope-from=zhao1.liu@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Different versions of PC machine support different maximum vCPUs, and even different features have limits on the maximum number of vCPUs ( For example, if x2apic is not enabled in the TCG case, the maximum of 255 vCPUs are supported). It is difficult to list the maximum vCPUs under all restrictions. Thus, to avoid confusion, avoid mentioning specific maximum vCPU number limitations here. Suggested-by: Daniel P. Berrangé Signed-off-by: Zhao Liu Reviewed-by: Daniel P. Berrangé --- docs/system/target-i386-desc.rst.inc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/docs/system/target-i386-desc.rst.inc b/docs/system/target-i386-desc.rst.inc index 319e540573d3..ae312b1c1e61 100644 --- a/docs/system/target-i386-desc.rst.inc +++ b/docs/system/target-i386-desc.rst.inc @@ -36,7 +36,8 @@ The QEMU PC System emulator simulates the following peripherals: - PCI UHCI, OHCI, EHCI or XHCI USB controller and a virtual USB-1.1 hub. -SMP is supported with up to 255 CPUs (and 4096 CPUs for PC Q35 machine). +SMP is supported with a large number of virtual CPUs (upper limit is +configuration dependent). QEMU uses the PC BIOS from the Seabios project and the Plex86/Bochs LGPL VGA BIOS.